Build Information
Failed to build swift-w3c-css, reference main (e2ce15), with Swift 6.3 for watchOS using Xcode 26.4 on 3 Oct 2026 07:36:28 UTC.
Build Command
No build command. This typically means the build failed at an early stage where we determine the build command.Build Log
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RunAll
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Builder version: 5.1.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/swift-w3c/swift-w3c-css.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/swift-w3c/swift-w3c-css
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at e2ce155 Decode the hex digits through their code units
Cloned https://github.com/swift-w3c/swift-w3c-css.git
Revision (git rev-parse @):
e2ce155ab9c05c5c44af5797f12e01288bb9834a
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/swift-w3c/swift-w3c-css.git at main
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Build
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Selected platform: watchOS
Swift version: 6.3
Building package at path: $PWD
https://github.com/swift-w3c/swift-w3c-css.git
Command line invocation:
/Applications/Xcode-26.5.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
Resolved source packages:
spi-builder-workspace: (null)
2026-10-03 03:36:26.379 xcodebuild[540:3122] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-03-10_03-36-0026.xcresult
xcodebuild: error: Could not resolve package dependencies:
package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
Command line invocation:
/Applications/Xcode-26.5.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
Resolved source packages:
spi-builder-workspace: (null)
2026-10-03 03:36:27.998 xcodebuild[608:3632] Writing error result bundle to /var/folders/xq/y_g06wb113726d38xsyx71_h0000gn/T/ResultBundle_2026-03-10_03-36-0027.xcresult
xcodebuild: error: Could not resolve package dependencies:
package 'spi-builder-workspace' is using Swift tools version 6.4.0 but the installed version is 6.3.2
BUILD FAILURE 6.3 watchOS